How To Make V-key Toggle Between Vertex Paint And Object Mode?
It occurred to me I was trying to mimic the Tab-Key. So I looked that up in the Keymap. Then just did the same thing, but for Vertex Painting instead of Editing.
Preferences &gt; Keymap &gt; 3D View &gt; Object Non-modal &gt; Add New

Set object.mode_set
Assign V-Key binding
Then select option to make it a toggle.


Note: In Vertex Paint mode, V is already bound to 'Vertex Section' mask. I removed the default V-key shortcut from Keymap &gt; 3D View &gt; Vertex Paint.